Liquid crystal displays with liquid crystal molecules and polymers in which the polymers adhere to the substrates and capsulate the molecules

Abstract

Liquid crystal displays and fabrication methods thereof. The liquid crystal display comprises a first substrate with an active matrix of a plurality of pixels. A second substrate is provided opposing the first substrate. A liquid crystal layer is interposed between the first substrate and the second substrate. Each pixel comprises a polymer dispersed liquid crystal layer corresponding to a first liquid crystal region and a non-polymer dispersed liquid crystal layer corresponding to a second liquid crystal region.

1. A liquid crystal display, comprising:
 a first substrate with an active matrix of a plurality of pixels; 
 a second substrate opposing the first substrate; and 
 a liquid crystal layer interposed between the first substrate and the second substrate; 
 wherein each pixel comprises a polymer dispersed liquid crystal layer corresponding to a first liquid crystal region and a substantially non-polymer dispersed liquid crystal layer corresponding to a second liquid crystal region, and the first liquid crystal region comprises polymers and liquid crystal molecules, wherein the polymers are adhered to the first substrate and the second substrate, and the polymers capsulate the liquid crystal molecules. 
 
   
   
     2. The display as claimed in  claim 1 , wherein the polymers are formed on the first substrate corresponding to the first liquid crystal region. 
   
   
     3. The display as claimed in  claim 1 , wherein the polymers are formed on the second substrate corresponding to the first liquid crystal region. 
   
   
     4. The display as claimed in  claim 1 , wherein the polymers are formed on the first substrate and the second substrate corresponding to the first liquid crystal region. 
   
   
     5. The display as claimed in  claims 1 , wherein the polymers are photopolymers or thermal polymers. 
   
   
     6. A method for fabricating a liquid crystal display, comprising:
 providing a first substrate with an active matrix of a plurality of pixels; 
 providing a second substrate opposing the first substrate; and 
 forming a liquid crystal layer interposed between the first substrate and the second substrate; 
 wherein each pixel comprises a polymer dispersed liquid crystal layer corresponding to a first liquid crystal region and a substantially non-polymer dispersed liquid crystal layer corresponding to a second liquid crystal region, and the first liquid crystal region comprises polymers and liquid crystal molecules, wherein the polymers are adhered to the first substrate and the second substrate; and the polymers capsulate the liquid crystal molecules. 
 
   
   
     7. The method as claimed in  claim 6 , wherein the polymers are formed on the first substrate corresponding to the first liquid crystal region. 
   
   
     8. The method as claimed in  claim 6 , wherein the polymers are formed on the second substrate corresponding to the first liquid crystal region. 
   
   
     9. The method as claimed in  claim 6 , wherein the polymers are formed on the first substrate and the second substrate corresponding to the first liquid crystal region. 
   
   
     10. The method as claimed in  claims 6 , wherein the polymers are photopolymers or thermal polymers. 
   
   
     11. A method for fabricating a liquid crystal display, comprising:
 providing a first substrate with an active matrix of a plurality of pixels; 
 providing a second substrate opposing the first substrate; and 
 forming a liquid crystal layer with monomers interposed between the first substrate and the second substrate; 
 selectively polymerizing the monomers in the liquid crystal layer such that each pixel comprises a polymer dispersed liquid crystal layer corresponding to a first liquid crystal region and a substantially non-polymer dispersed liquid crystal layer corresponding to a second liquid crystal region. 
 
   
   
     12. The method as claimed in  claim 11 , wherein the first liquid crystal region comprises polymers and liquid crystal molecules. 
   
   
     13. The method as claimed in  claim 12 , wherein the polymers are adhered to the first substrate and the second substrate; and the polymers capsulate the liquid crystal molecules. 
   
   
     14. The method as claimed in  claim 12 , wherein the polymers are formed on the first substrate corresponding to the first liquid crystal region. 
   
   
     15. The method as claimed in  claim 12 , wherein the polymers are formed on the second substrate corresponding to the first liquid crystal region. 
   
   
     16. The method as claimed in  claim 12 , wherein the polymers are formed on the first substrate and the second substrate corresponding to the first liquid crystal region. 
   
   
     17. The method as claimed in  claims 12 , wherein the monomers are thermally polymerizing monomers or photo-polymerizing monomers. 
   
   
     18. The method as claimed in  claim 11 , wherein the liquid crystal layer further comprises an inducer in the first liquid crystal region. 
   
   
     19. The method as claimed in  claim 11 , wherein the step of selectively polymerizing the monomers is performed by a lithographic process. 
   
   
     20. The method as claimed in  claim 19 , wherein the lithographic process comprises:
 forming a mask with an opening on the first substrate or the second substrate, the opening exposing the first liquid crystal region; and 
 irradiating light of a predetermined wavelength on the opening to polymerize the monomer in the first liquid crystal region.